of Gould, 24

Scott, Dr. Dukinfield H., speech at presentation of Darwin-Wallace Medals,
i. 110-112;
at Wallace's funeral, ii. 252;
and the Wallace memorial in Westminster Abbey, 254

Scott's "Antarctic Voyage," ii. 82

Sedgwick, Prof., and Darwin, i. 17, 18;
attacks Darwin at Cambridge Philosophical Society, 142

See, T.J.J., ii. 179-80

Seeman, Berthold, i. 199, 201, 210, 211

Segregation of the unfit, Wallace on, ii. 160-1, 246

Selection, domestic, i. 130, 134, 136, 160, 161, 167, 181, 183,
186, 189 (note), 192, 208, 215, 226, 228, 231, 257, 299

---- natural, theory of, i. 155, 156, 170 _et seq._, 195
_et seq._, 218, 240, 267, 298, 301, ii. 16-17, 63, 75,
94, 96, 98, 101, 150;
discovery of, i. 2, 89-126;
anticipations of, 116, 142, 176;
Spencer's alternative term for, 125, 171;
Lord Salisbury's conception of, ii. 59, 60, 65;
Neo-Lamarckians and, 64

---- physiological, Romanes' theory of, i. 218, ii. 36, 49-50, 63
_et seq._, 235-7

---- sexual, i. 157, 159, 177, 179, 182, 185-6, 194, 199, 203, 204, 212
_et seq._, 216-17, 220, 224-5, 227 _et seq._, 256, 261,
298, 299

Self-fertilisation, i. 169, 297, ii. 46

"Shall we have Common Sense?" Sleeper's, ii. 98, 99

Sharpe, Mr. J.W., reminiscences of Wallace, ii. 107-9

Shells, Lyell on, ii. 24

Shipley, Dr. A.E., and Wallace medallion in Westminster Abbey, ii. 253

Shrewsbury Grammar School, Darwin and, i. 12, 15

Sidgwick, Prof, and Mrs. H., telepathic experiments by, ii. 199, 200;
Wallace's remarks on, 200-1

"Siege of the South Pole," Mill's, ii. 82

Silk, George, i. 52, 87;
Wallace's friendship with, 10;
walking tour in Switzerland with Wallace, 35

Sims, Mrs. (sister of A.R. Wallace), i. 30, 44, 56, 60, 62, 64, 85

---- Thomas, i. 63, 73

Singapore, Wallace at, i. 36

Slade, prosecution of, ii. 197

Sleeper, George W., ii. 98, 99, 100

Smedley, Mr. E., ii. 83, 100, 163, 175, 215

Smith, Dr. Edwin, ii. 210

"Social Environment and Moral Progress," Wallace's, ii. 104, 144-5, 250

"---- Statics," Spencer's, i. 123, 150, ii. 143

Socialism, Wallace's first lessons in, and later views of, i. 15, 16,
ii. 139 _et seq._;
"individualistic," 114;
Wallace's definition of, 152

Society for Psychical Research, foundation of, ii. 196

"Sociology, Principles of," i. 126

"---- Study of," Spencer's, i. 283

Solar nebula, lecture by Sir R. Ball on, ii. 174

---- system, cent